CCTV DVR H.264 compression format 4ch video input,1ch BNC output,1ch ... time, video loss, camera lock, motion detection, recordingRecordingVideo/Audio CompressionH.264 / G.711Image ResolutionD1/4CIF(704x576/704x480) / CIF(352x288/352x240) / ... , Alarm ServerRemote OperationMonitor, PTZ control, Playback, System setting, File download, Log informationHard DiskHard Disk1 SATA port, 2.5” SATA HDDSpace ...